New York AGRICULTURAL EXPERIMENT STATION. 331 
Pech e OF BRIO E YES PY RI ¢CPGST.) NAL. 
Typhlodromus pyri. Scheuten, M. A. Troschel’s Arch., 1857, p. 104. 
[Ibid, Ann. Mag. Nat. Hist., 19:—. 1857.] 
Phytoptus pyri. Pagenstecher, H. Al. Verhandl. Naturhist. Med. Ver. 
Heidelberg, 1:48. 1857. 
Wash BeD. Proc. ent 50c Pini... 6:285-7. 1867. 
Typhlodromus pyri. Packard, A. S. Guide, p. 666. 1860. 
Glover, T. Ent. Record, 1872, pp. 304-307, fig. 10. 
July, 1872. 
[Ibid, U. S. Dept. Agr. Mon. Rpt.] 
Clover ie BU e DCNie Cran pty lLose,: Dar TI 3: 
Thomas, F. A. W. Giebel’s Zischr., 39:473. 1872. 
Phytoptus pyri. Sorauer, P. Versamml. Deut. Naturf. u. Aertze. 1873, p. 
£33: 
Typhlodromus pyri. Kaltenbach, J. H. Pflanzenfeinde, p. 204. 1874. 
Phytoptus pyri. Sorauer, P. Arb. d. Ver. Pom. Inst. Proskau, 1877. 
Typhlodromus pyri. Murray, A. Econ. Ent., pp. 340, 362. 1877. 
Barnard, W. S. Sct. Amer. Supplement, No. 207, p. 
2302) CC, 120, 11570. 
Phytoptus pyri. Burrill, T. J. Gard. Mo. and Hort., 22:18-19. 1880; s. b., 
No.223 pp, 177-1768: 
[ibid) Amer. Ent, n.*s., 1:26. »1880.] 
Typhlodromus pyri. Riley, C. V., and Fuller, A. S. Amer. Ent., n. s., 1:26. 
Feb., 1880. 
Ibid.33-74. osMar.,.. 1800. 
Typhlodromus pyri. Taylor, T. Gard. Mo., 22:85-86. 1880. 
Phytoptus pyri. Taschenberg, E. L. Praktische Insekten-kunde, pt. 5, p. 
158. 1880. 
Frank, A. B. Die Krankheiten der Pflanzen, p. 699. 1880. 
Garman, H. Rep. Ill. State Ent., 12:125, 140. 1882 (1883). 
Lihids, | rans Dept. Act Llyn Sig.13s125. 1002 .( 1o53).| 
Osboriy hi lowa tateetiort? Doc, IR pt. 18s127-135., 1683: 
Osborn, H. Towa, Agr. Goll, Bul..2; p. 56. 1884: 
McMurrich, J. Johns Hopkins Univ. Circ., 14: No. 35, p. 
17. 1884. 
Hagen) He Con sEai..17-721-20, 1605. 
Osborn, H., and Underwood, L. M. Can. Ent., 18:12. 1886. 
Typhlodromus pyri. Osborn, H., and Underwood, L. M. Can. Ent., 18:12. 
1886. 
Phytoptus pyri. Crawford,—. Rept. on Fusicladiums, Aust. 1886. p. 46. 
Sorauer, P. Pflanzenkrankheiten, pt. 1, p. 814. 1886. 
Gillette. G..P) sAnneeRpteStates Horts Soc.- Mich., 16:87. 
1886. (1887). 
Webster, F. M. Insect Life, 1:363. 1880. 
Phytoptus piri. Nalepa, A. Anz. K. Akad. Wiss. [Vienna], 16:162. 
Nalepa, A. Sitzber. K. Akad. Wiss. [Vienna], 99:50, t. 4. f. 
I, 2. 1890. 
